Their panel does not however integrate with whm or cpanel.
Myself and my partner are working on the following application : http://www.cpshout.com
Which will have support for multiple servers per client, bitrate restrictions, and full integration with cpanel / whm.

The project is now in the works, and we'll have a preliminary screenshot up in the next hour or two.

you just cant 'isolate' a "SCP". Thats like saying, "the xtra plan will only have cronjobs, and 500KB of space". So, being able to isolate a scp from the rest of cpanel wont be possible in the near future (unless they plan on distributing a theme with one link to the SCP panel and nothing else).